426-620: BOLT,MACHINE.
The BOLT,MACHINE is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, thread_class: COARSE, fastener_length: 1.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.375 INCHES IN, thread_quantity_per_inch: 16. This part is cataloged in the U.S.
Government catalog under NSN 5306-00-840-3931, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| head_style | HEXAGON |
| thread_class | COARSE |
| fastener_length | 1.250 INCHES NOMINAL IN |
| thread_direction | RIGHT-HAND |
| nominal_thread_diameter | 0.375 INCHES IN |
| thread_quantity_per_inch | 16 |
| thread_series_designator | UNIFIED NATIONAL COARSE (UNC) |
| NSN | 5306-00-840-3931 |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| SURFACE FINISH | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| HEAD HEIGHT | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| FASTENER LENGTH | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2416 ASSN STD ALL TREATMENT RESPONSES OVERALL |
| THREAD LENGTH | 0.572 INCHES MINIMUM AND 0.612 INCHES MAXIMUM IN |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| SHANK UNTHREADED HOLE DIAMETER | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM FIRST HOLE IN |
| CRITICALITY CODE JUSTIFICATION | FEAT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
No substitute or cross-reference records for this part.